61242122 has 4 divisors (see below), whose sum is σ = 91863186. Its totient is φ = 30621060.

The previous prime is 61242119. The next prime is 61242133. The reversal of 61242122 is 22124216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57896881 + 3345241 = 7609^2 + 1829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61242094 and 61242103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15310529 + ... + 15310532.

Almost surely, 2^61242122 is an apocalyptic number.

61242122 is a deficient number, since it is larger than the sum of its proper divisors (30621064).

61242122 is a wasteful number, since it uses less digits than its factorization.

61242122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30621063.

The product of its digits is 384, while the sum is 20.

The square root of 61242122 is about 7825.7345981064. The cubic root of 61242122 is about 394.1698572767.

Adding to 61242122 its reverse (22124216), we get a palindrome (83366338).

The spelling of 61242122 in words is "sixty-one million, two hundred forty-two thousand, one hundred twenty-two".